Taking the power grid in an eastern province of China as an example,the principles and methods for planning typical scenarios of clean energy are proposed based on the clean energy output characteristics,that is,four typical daily photovoltaic output scenarios in the region are obtained based on K-Means clustering algorithm,and analyses are conducted on the output characteristics of wind power and photovoltaic of the provincial grid in different time scales(year,month,day),based on which four typical daily output curves are selected.